[Intel-gfx] [PATCH v2 0/9] Add get_eld audio component for i915/HD-audio

Takashi Iwai tiwai at suse.de
Tue Dec 1 08:09:49 PST 2015


this is a revised patchset to add get_eld op to audio component for
communicating more directly between i915 and HD-audio.  Currently, the
HDMI/DP audio status and ELD are notified and obtained via the
hardware-level communication over HD-audio unsolicited event and
verbs although the graphics driver holds the exactly same
information.  As we already have a notification via audio component,
this is another step forward; the audio driver fetches directly the
audio status and ELD via the new component op.

The patch still doesn't follow the recent kernel doc comment changes
in i915_component.h.  I'll rebase once when I get the steady branch in
drm tree.

The current patchset is found in sound git tree test/hdmi-jack



* Use modeset lock for get_eld lock, drop av mutex
* Return the expected size from get_eld, not the copied size
* Add reverse map from a port number to the encoder
* Deferred invocation of get_eld from the eld_notify in HDA side
* A bit more code refactoring in HDA side
* Move audio component accessors to hdac_i915.c

Takashi Iwai (9):
  drm/i915: Remove superfluous NULL check
  drm/i915: Add get_eld audio component
  drm/i915: refactoring audio component functions
  drm/i915: Add reverse mapping between port and intel_encoder
  ALSA: hda - Split ELD update code from hdmi_present_sense()
  ALSA: hda - Use component ops for i915 HDMI/DP audio jack handling
  ALSA: hda - Do zero-clear in snd_hdmi_parse_eld() itself
  ALSA: hda - Skip ELD notification during PM process
  ALSA: hda - Move audio component accesses to hdac_i915.c

 drivers/gpu/drm/i915/i915_drv.h    |   2 +
 drivers/gpu/drm/i915/intel_audio.c |  59 ++++++---
 drivers/gpu/drm/i915/intel_ddi.c   |   1 +
 drivers/gpu/drm/i915/intel_dp.c    |   1 +
 drivers/gpu/drm/i915/intel_drv.h   |   1 +
 drivers/gpu/drm/i915/intel_hdmi.c  |   2 +
 include/drm/i915_component.h       |   6 +
 include/sound/hda_i915.h           |  14 +++
 sound/hda/hdac_i915.c              |  66 +++++++++++
 sound/pci/hda/hda_eld.c            |   1 +
 sound/pci/hda/patch_hdmi.c         | 237 +++++++++++++++++++++++++------------
 11 files changed, 294 insertions(+), 96 deletions(-)


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